So I am having trouble with my sigma 24-70 f2.8 Dg ex non hsm lens.
When the lens is not in use the front part or element part shifts forward and backward. When in use it will shift to one or they other and I end up miss focusing. I want to know if anyone has experienc fixing something like this,and I am very handy but don't want to break it.

I sold my Tamron 17-50 and 70-200 2.8 and I will get them again at some point and another sigma 50 1.4 hsm. That sigma was one of the best lenses I have ever owned the 70-200 was great also but the range was to long I would rather have a 50-135 it would work better.

I took the creative route I made my own sling strap from a rifle shoulder strap from WalMart and use my tripod D link connecter for the head to mount the camera or a eye with threads. I have tested it with 25 lbs of weight on it and it held great.

I would be happy to take one or a few off your hands and would be very greatfull. people now a days think people owe them something and think that is was their right to have that its not about the please and thank you's any more and that is what is wrong with a lot of people.

Item Description
I have 2 cowboy studio light stands made of metal. They come with two umbrellas one is a shoot through 33 inch and they other is a silver reflective 33 inch one. I am including a cold flash adapter that holds an umbrella.

I would love to trade for a Da 50mm f1.8 or a Da 35 f2.4 lens.

The whole kit cost around 100.00 for the stands and umbrellas not including the flash bracket witch was 15.00 on its own so let me know thanks.

Item Description
I got the lens 4 monthes ago and hardly used it. I bought it referbished from sigma. No scratches or markes on the elements. It comes with both origanl front and rear caps and sigma paded soft case. I have had a filter on it from day one and will include it with sale. the only reason for sall is to get some stuff back that got stolen back in july. US shipping only I only accept paypal

Thanks for looking

Would trade for a Pentax da 50 f1.8 and some cash or DA 35 f2.4 and some cash

I had one of these about 7 years ago it is what got me back in to photography and the k mount again. I would say it would be good for students in collage if they still offer photography using film that is.

---------- Post added 09-22-15 at 05:41 PM ----------

I also wish I still had a film body my k1000 was in such bad shape I traded it to the camera store for a couple of filters he pretty much said that the only good part was the shutter.